Cycling enthusiast Rembrandt Struijk, 45, takes a spin on a 145-year-old penny farthing at Singapore's Car-Free Sunday event. (PHOTO:Rembrandt Struijk)

SINGAPORE — Rembrandt Struijk, a 45-year-old cycling enthusiast, captured attention at Singapore's recent Car-Free Sunday event by navigating the city streets on a 145-year-old penny farthing, a vintage bicycle known for its large front wheel and smaller rear wheel.